mozilla-central/toolkit/components/resistfingerprinting/tests/chrome/test_spoof_english.html

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Test Info: Warnings

<!DOCTYPE HTML>
<html>
<!--
-->
<head>
<meta charset="utf-8">
<title>Test for Bug 1486258</title>
<link rel="stylesheet" type="text/css" href="chrome://global/skin"/>
<link rel="stylesheet" type="text/css" href="chrome://mochikit/content/tests/SimpleTest/test.css"/>
</head>
<body>
<p id="display"></p>
<div id="content" style="display: none">
</div>
<pre id="test">
</pre>
<script type="text/javascript">
/* global SpecialPowers, content */
const { BrowserTestUtils } = ChromeUtils.importESModule(
);
const gOrigAvailableLocales = Services.locale.availableLocales;
const gOrigRequestedLocales = Services.locale.requestedLocales;
const kDoNotSpoof = 1;
const kSpoofEnglish = 2;
async function runTest(locale) {
return BrowserTestUtils.withNewTab("https://example.com/", browser => {
return SpecialPowers.spawn(browser, [locale], _locale => {
let locale = JSON.stringify(_locale);
return content.eval(`({
locale: new Intl.PluralRules(${locale}).resolvedOptions().locale,
weekday: new Date(0).toLocaleString(${locale}, {weekday: "long"}),
currency: Number(1000).toLocaleString(${locale}, {currency: "USD"}),
})`);
});
});
}
async function runSpoofTest(spoof) {
ok(spoof == kDoNotSpoof ||
spoof == kSpoofEnglish, "check supported parameter");
await SpecialPowers.pushPrefEnv({
"set": [
["privacy.spoof_english", spoof],
],
});
let results = await runTest(undefined);
await SpecialPowers.popPrefEnv();
return results;
}
async function setupLocale(locale) {
Services.locale.availableLocales = [locale];
Services.locale.requestedLocales = [locale];
}
async function clearLocale() {
Services.locale.availableLocales = gOrigAvailableLocales;
Services.locale.requestedLocales = gOrigRequestedLocales;
}
(async function() {
SimpleTest.waitForExplicitFinish();
// 1. preliminary for spoof test
await SpecialPowers.pushPrefEnv({
"set": [
["privacy.resistFingerprinting", true],
],
});
// 2. log English/German results
let enResults = await runTest("en-US");
is(enResults.locale, "en-US", "default locale");
let deResults = await runTest("de-DE");
is(deResults.locale, "de-DE", "default locale");
// 3. set system locale to German
await setupLocale("de-DE");
// 4. log non-spoofed results
let nonSpoofedResults = await runSpoofTest(kDoNotSpoof);
// 5. log spoofed results
let spoofedResults = await runSpoofTest(kSpoofEnglish);
// 6. compare spoofed/non-spoofed results
for (let key in enResults) {
isnot(enResults[key], deResults[key], "compare en/de result: " + key);
is(nonSpoofedResults[key], deResults[key], "compare non-spoofed result: " + key);
is(spoofedResults[key], enResults[key], "compare spoofed result: " + key);
}
// 7. restore default locale
await clearLocale();
SimpleTest.finish();
})();
</script>
</body>
</html>